Mechanic&#39;s tool of the handsaw type



A. NERON.

MECHANICAL TOOL OF THE HANDSAW TYPE.

APPLICATION FILED JAN- 17, I922.

Patented Aug. 15, 1922'.

2 SHEETS-SHEET l.

614102 neg A. NERON.

MECHANICAL TOOL OF THE HANDSAW TYPE.

Patented Aug. 15, 1922.

2 SHEETS-SHEET 2.

mud

AIME nnnon,

hi1 FEQEQ OF NEVL BEDFORD, MASSACHUSETTS.

Specification of Letters Patent.

Patented Aug. 15, 1922.

Application filed January 17, 1922. Serial No. 530,004.

T (ZZZ Ni /2027241 may concern:

)e it known that l, Anni l nnoN, a subject of the King of Great Britain,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented new and useful Improvements in MechanicsTools of the Handsaw Type, of which the following is a specification.

My said invention has for its object the provision or" a mechanics toolor device of the hand saw type possessed of a wide range of usefulnessand at the same time well adapted to withstand the rough usage to whichdevices of corresponding character are ordinarily subjected.

To the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figures1 and 2 are elevations showing the opposite sides of the tool which ispreferably of the hand-saw type.

Figure 3 is an enlarged fragmentary elevation illustrating a portion ofthe improvement.

Figure 4- is a section taken on the line %l of Figure Figure 5 is adetail section taken at right angles to Figure 6, and hereinafterexplicitly referred to.

Figure 6 is an enlarged section taken in the plane indicated by the line6-6 of Figure 4.

Figure 7 is an enlarged plan of the cap per se.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

In general the blade 1 and the handle 2 of the saw are of ordinaryconstruction, though the blade 1 is preferably provided at oppositesides with scale measures 3 and l. the measure being located adjacent tothe back edge of the blades, and the measure l adjacent to the toothededge thereof. The forward edge 5 of the handle 2, at one side of theblade 1, is faced with a steel strip 6, disposed at right armies to theback edge of the blade 1 for squaring purposes. The forward edge 7 ofthe handle 2 at the opposite side of the blade 1 is also preferablydisposed at right angles to the back of the blade. At the. same side ofthe blade as the said edge 7 is provided an arcuate scale 8. Also at thesame side of the blade 1 the handle 2 is recessed, as designated by 9 toaccommodate a rotary body 10, of steel or other appropriate materialwhich is arranged and movable alongside of and close to the blade 1. Thesaid body 10 is turnable about a pin 11, preferably of angular form incross-section throughout its length, which is strongly held againstturning by its snug arrangement in an angular ape true 1 in the blade 1,and is disposed in an angular aperture 13 in a peripherallytoothed disk14 so as to hold said disk against turning; .the disk 14 being retainedon the pin 11 by a washer 15 and a screw 16. At one end the pin 11 isprovided with a threaded shank 17 in threaded engagement with a flangedandkerfed retaining head IS Figures 2 and 4. The disk 14 is arrangedagainst the bottom 19 of a chamber 20 in the body 10, and in the outerpor tion of said chamber is secured a threaded annulus 21. About thechamberbottom 19 is provided an annular groove 22, the inner wall 23 ofwhich is inclined as best shown in Figure 5.

pposed at one end to the washer 15 and connected at thereto is anexpansion spring 31 which bears at its outer end against the cap 32 soas to yieldingly hold said cap against and return the same to theannulus 21. Pivoted to hangers 33 on the cap 32 near the peripherythereof are pendent dogs 34, yieldingly pressed inwardly by springs 35,and one of which is normally seated in an interdental space of the diskl t to hold the body 10 against turning about its axis. In thisconnection it will be noticed by reference to Figure 6 that the dogs 34are preferably not equi-distant, this arrangement being resorted to forthe purpose of nice adjustment or turning movement of the body 10. Thesprings 35 are connected to the dogs 34 and bear against the wall of thechamber in the body 10. Integral with the body 10 and extendingtangentially therefrom, Figures l, 3 and 6, is an arm for use incooperation with the arcuate scale 8 for angledetermining orascertaining purposes. It will also be noticed here that the body 10 isprovided 011 its face with a scale 50, for oowhen the cap 32 and thedogs. 34: are

operation with a fixed pointer 51 which is shown in Figure 3 at zero,and that the body is adapted to be used in cooperation with the backedge of the blade 1. The annulus 21 is preferably kerfed at 60 tofacilitate turning of the same into and out of the body 10.

It will be apparent from the foregoing that when the user of my noveldevice desires to adjust and adjustably fix the arm 4L0 it is simplynecessary for him to depress the cap 32 to disengage the dogs 3d fromthe disk 14, and then move the arm 40 to the p0 sition desired and thenrelease the cap 32, it being understood in this connection that depressed, the dogs 34 Will be moved outwardly by the Wall 23 to disengagethe same from the disk 14, also that when the cap 32 and dogs 34 moveupwardly the springs 35 will press the dogs inwardly.

The arm 40 is preferably, though not necessarily, of angular form incross-section, to receive or cradle apencil 7 0 which may be removablyheld in the arms by clips 71.

I have entered into a detailed description of the construction andrelative arrangement of the parts embraced in the present and preferredembodiment of my invention in order to impart a full, clear and exactunderstanding of the said embodiment. I do not de sire, however, to beunderstood as confining myself to the said specific construction andrelative arrangement of parts inasmuch as in the future practice of theinvention various changes and modifications may be made such as fallwithin the scope of my invention as defined in my appended claims.

Having described my invention, what I claim and desire to secure byLetters-Patent,

l. The combination of a blade and a handle thereon, a rotary chamberedbody alongside of the blade and connected therewith, and having anannular inclined wall, a toothed disk in the chamber of the body andfixed to the blade, a movable cap retained in the chamber of the body, aspring tending to force the cap outwardly, and a spring pressed dogcarried by the cap and arranged to cooperate with said inclined wall ofthe body. i

2. The combination of a blade and a handle thereon, a rotary chamberedbody alongside of the blade and connected therewith, and having anannular inclined Wall, a toothed disk in the chamber of the body andfixed to the blade, a movable cap retained in the chamber of the body, aspring tending to force the cap outwardly, and a spring pressed dogcarried by the cap and arranged to cooperate With said inclined wall ofthe body; the connection of the body to the blade being effected throughthe medium of a pin of angular form in cross-section extending through acircular aperture in the body and angular apertures in the blade and thetoothed disk and having a threaded shank at the opposite side of theblade, with reference to the rotatable body, a washer opposed to thetoothed disk and connected to said pin, and an interiorly threaded andflanged head disposed in the handle and receiving said threaded shank ofthe pin.

in testimony whereof, I afiix my signature.

AIME NERON.

